Cse 244 short historical intro
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CSE 244 -- Short Historical Intro. Aggelos Kiayias Computer Science & Engineering Department The University of Connecticut 371 Fairfield Road, Box U-2155 Storrs, CT 06269. Computing in the beginning of time. ?. Computing in the beginning of time. ... the legend.

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CSE 244 -- Short Historical Intro

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Cse 244 short historical intro

CSE 244 -- Short Historical Intro

Aggelos Kiayias

Computer Science & Engineering Department

The University of Connecticut

371 Fairfield Road, Box U-2155

Storrs, CT 06269


Computing in the beginning of time

Computing in the beginning of time....

?


Computing in the beginning of time1

Computing in the beginning of time

... the legend

how do you program this??Changing Gears!

the man...

and this

is only

a small

part of

the machine!

the programmer

Charles Babbage

The Difference Engine” (1822)

Lady Ada of Lovelace


Computers

Computers!

  • Electronic Numerical Integrator and Computer --- ENIAC, 1942

how do you program this??Flicking Switches!


Timeline

Timeline

  • the 1940’s. Code is hand generated at 0-1 level and entered by physical switches.Hardware is rewired according to the program.

  • the early 1950’s.First attempts to abstraction.Grace Murray Hopper:

    • “translation is a compilation of a sequence of machine-language subprograms selected from a library.”

    • first “compiler” A-0 (by G. M. Hopper)

    • Code now is written in Assembly form with simple English statements.

  • the late 1950’s.FORTRAN is born together with its Compiler!!!


Fortran

Fortran

diagram from http://merd.net/pixel/language-study/diagram.html


The 1960 s

the 1960’s

  • ALGOL 60

    • The first Language with a formal grammar specification

    • more on this later on (in every meeting of this class!)

  • FORTRAN gets improved.

  • Language theory is better understood, it evolves and revolutionizes compiler design.

  • First “Syntax-Directed Compiler” is born in 1961.

  • PASCAL is born (Wirth, 1968).

  • First attempts at automating compiler construction using elements of Formal Language Theory.


The 1970 s 80 s 90 s

The 1970’s, 80’s, 90’s

  • C programming Language is born with its compiler (1972). Distributed as part of the UNIX operating system.

  • BASIC is born (1975).

  • “Compiler-Compiler” Tools start to be developed and used extensively.

  • Success of PCs brings compilers and interpreters in everyone’s home.


Today

Today

  • Compilers are everywhere.

  • “Programming” (in the strict sense)is only one application domain...

    • TeX and LaTeX

      • language source is compiled into a document.

    • Postscript

      • language source is translated by laser printers to printer machine level instructions that print a document.

    • Mathematica / Matlab

      • use a language to specify mathematical operations.

    • Verilog / VHDL

      • compiles into a circuit

    • you name it...


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